Cisco Systems MICA V110 User Manual

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Basic V110 for MICA Modems on Cisco Access Servers

Feature Overview

This feature allows V.110 calls to be originated and terminated over ISDN. The V.110 recommendation of the ITU-Trate adapts a low speed connection to anISDN-Bchannel allowing the remote station or terminal adaptor to use the fast callset-uptimes offered by ISDN. This feature enables GSM wireless connectivity.

This document describes the Cisco IOS commands and AT commands required to support V.110 on MICA modems for AS5X00 Access Servers.

This MICA V.110 implementation supports 60 modems per board on the Cisco AS5300 and supports other connect standards (V.34, V.90, etc.) in addition to V.110. Modems are not dedicated to V.110 only and are allocated dynamically. On the Cisco AS5200, 30 modems per board is supported and 72 modems per board is supported on the Cisco AS5800.

This V.110 implementation for calls on MICA modems are managed by special boardware and modem code, along with the appropriate Cisco IOS image, in a manner similar to other modulation standards.

Note This document is in development. Portions of this document may not be complete or developed according to the current documentation standards. This document is subject to revision when the content is available and developed further. Please check the online version periodically until the document is completed according to the usual documentation standards.

Feature Summary

Bearer Rate supported range from 600 bps to 38400 bps.

Modem Management is supported.

Modem Log for V.110 calls is supported.

show modem (Number of connections at specific line speeds is supported.)

show modem (Number of calls counters supported)

show modem (Display of Tx/Rx line speeds is supported.)

show modem version is supported.

show modem configuration is supported.

show modem operational-statusis supported.

ATDI command is added toAT command set for V.110 modem dialouts.

Basic V110 for MICA Modems on Cisco Access Servers 1

Note This feature is distinct from the Asynchronous Management Protocol for V.110 Terminal Adaptor Module that runs in the Cisco AS5200 and Cisco AS5300.

Benefits

V.110 is a digital link access protocol and for Cisco access servers. It operates over an ISDN B channel. V.110 enables Cisco access servers to connect to ISDN terminal adapters requiring V.110 compatibility. This feature enables GSM wireless connectivity.

This ISDN feature is in addition to the existing analog capability of the MICA modems.

Also, some digital cellular networks support data applications via V.110 connecting from the cell phone. These networks place these V.110 calls on the PSTN for interconnecting to the ISP of the end-customer'schoice. MICA V.110 supports data rates from 600 bps up to 38,400bps.

Cisco IOS show commands have been changed to display additional fields reflecting the V.110 capability. See the“Command Reference” section.

An added AT command,ATDI, allows the user to command a V.110 modem to originate a V.110 call. See the“Command Reference” section.

Restrictions

This basic feature allows a V.110 call to be originated and terminated. Synchronous V.110 is not supported. In addition, V.110 calls must terminate on a TTY asynchronous IOS interface.

Transmission Speeds/Bearer Rates

The following V.110 bearer rates and intermediate rates (ITU-TRecommendation Q.931) are supported:

V.110 Bearer Rates:

600 bps

1200 bps

2400 bps

4800 bps

7200 bps

9600 bps,

14400 bps

19200 bps

28800 bps (not currently supported)

38400 bps

Intermediate Rates:

8k

16k

32k bps

2 Cisco IOS Release 12.0(4)XI1

Related Features and Technologies

64k bps

Related Features and Technologies

This feature requires special modem code to be downloaded to the MICA Modems. See the online CCO modem information page.

Related Documents

See the modem code online documentation for the platform you are using:

Firmware and Portware Information http://www.cisco.com/univercd/cc/td/doc/product/access/fwpwinfo/index.htm

See also the following documents:

12.0 Dial Solutions Command Reference (DR)

Cisco AS5800—Modemand System Management Features for the Cisco AS5800

Online product-specificrelease notes for the corresponding platforms on the appropriate Cisco IOS release. Start from the appropriate Cisco IOS numbered release on this page:

Cisco IOS Software Configuration: http://www.cisco.com/univercd/cc/td/doc/product/software/index.htm

Supported Platforms

Cisco AS5200 in Cisco IOS Release 12.(4)XI1

Cisco AS5300 in Cisco IOS Release 12.(4)XI1

Cisco AS5800 (not currently supported)

Prerequisites

Supporting boardware and modem code on the MICA modems and special versions of the CSM on certain platforms. See Firmware and Portware Information, under the“Related Documents” section.

Supported MIBs and RFCs

The current Modem Management MIB objects for MICA modems will also be used for V.110. One minor change is in the SNMP agent code. This change returns the correct modulation type for V.110 when it does a look up of the modulation for MICA modems.

Basic V110 for MICA Modems on Cisco Access Servers 3

List of Terms and Acronyms

Boardware—

Software that runs on the CPU on the certain supporting cards

 

 

CSM—

Call Switching Module

 

 

E1—

European equivalent of T1, 32 channels of 64KHz, 1 for framing, 1 for signaling

 

 

GSM—

Global System for Communications

 

 

HMM—

Hex Modem Module

 

 

IOS—

Internetworking Operating System

 

 

ISDN—

Integrated Services Digital Network

 

 

LLC—

Link Layer Control

 

 

MICA—

Modem ISDN Channel Aggregation

 

 

MSM—

Modem State Machine

 

 

Portware—

Software that runs on MICA digital modem module

 

 

PRI—

Primary Rate Interface

 

 

Q.931—

ISDN User-NetworkInterface Layer 3 Specification for Basic Call Control

 

 

T1—

North American Channelized TDM w/ 24 channels of 64Khz each plus 8Khz frame

 

 

TA—

Terminal Adapter

 

 

V.110—

ITU-TStandard for support by ISDN of Data Terminal Equipment withV-SeriesType

 

Interfaces

 

 

Configuration Tasks

There are no configuration tasks. All commands in this feature are modified existing show modem commands.

Command Reference

This section documents modified commands. All other commands used with this feature are documented in the Cisco IOS Release 12.0 command references and the Cisco AS5800 online new feature documentation. For more information, see the documentation for the existing show modem commands.

No new IOS commands are being added to support V.110 on MICA. However, due to the new V.110 Connect Protocol, Connected Standard, Line Speeds (Bearer Rates) and counters, the code that handles the following show modem commands has been modified as listed in the following logical order:

show modem

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show Command Examples

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/dial_r/drprt1/dr modmgt.htm#xtocid10451223

See also show modem at:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios113ed/113aa/113aa_2/58cfe ats/c5800uas.htm#19600

show modem log

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/dial_r/drprt1/dr modmgt.htm#xtocid10451261

show modem configuration

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/dial_r/drprt1/dr modmgt.htm#xtocid10451239

show modem connect-speeds

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/dial_r/drprt1/dr modmgt.htm#xtocid10451245

show modem operational-status

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/dial_r/drprt1/dr modmgt.htm#xtocid10451279

For the commands above, MICA Modem Management code has been modified to display the correct information for V.110 associated Connect Protocol and Connected Standard. In addition, the correct line speeds for V.110 related Bearer Rates have also be added to commands that display the information.

For other and related modem management commands, such as modem-at mode, see:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/dial_r/drprt1/drmo dmgt.htm#xtocid104510

show Command Examples

The show modem command includes outputs for theshow modem configuration command and theshow modem connect-speeds command.

show modem

Fields that have been added or changed for this command are:

Modem Type V.110

Protocol: ISDN Mode

Connection Speeds 34000

The show modem command example is as follows:

router# show modem 1/0

 

 

 

 

 

 

 

Mdm

Typ

Status

Tx/Rx

G

Duration

RTS

CTS

DCD

DTR

1/0

V.110

Conn

9600/9600

0

10:12:19

x

x

x

x

Modem 1/0, Mica Hex Modem (Managed), Async1, TTY1

 

 

 

 

Firmware Rev: 2.7.0.6

 

 

 

 

 

 

 

Modem config: Incoming and Outgoing

 

 

 

 

 

 

Protocol: ISDN Mode, Compression: None

 

 

 

 

 

Management config: Status polling

 

 

 

 

 

 

RX signals:

0 dBm

 

 

 

 

 

 

 

Basic V110 for MICA Modems on Cisco Access Servers 5

Last clearing of "show modem" counters never

 

 

 

23 incoming completes,

2 incoming

failures

 

 

 

0 outgoing completes, 0 outgoing failures

 

 

 

0 failed dial attempts, 0 ring no

answers, 2 busied

outs

 

0 no dial tones, 0 dial timeouts,

0 watchdog timeouts

 

0 no carriers, 0 link failures,

0

resets, 0 recover

oob

 

0 recover modem, 0 current fail

count

 

 

 

0 protocol timeouts, 0

protocol

errors, 0 lost events

 

0 ready poll timeouts

 

 

 

 

 

 

 

Transmit Speed Counters:

 

 

 

 

 

 

 

Connection Speeds

 

75

300

600

1200

2400

4800

# of connections

 

0

 

0

0

0

0

1

Connection Speeds

7200

9600

12000

14400

16800

19200

# of connections

 

1

 

4

0

3

0

8

Connection Speeds

21600

24000

26400

28000

28800

29333

# of connections

 

0

 

0

0

0

0

0

Connection Speeds

30667

31200

32000

33333

33600

34000

# of connections

 

0

 

0

0

0

0

0

Connection Speeds

34667

36000

37333

38000

38400

38667

# of connections

 

0

 

0

0

0

6

0

Connection Speeds

40000

41333

42000

42667

44000

45333

Receive Speed Counters:

 

 

 

 

 

 

 

 

Connection Speeds

 

75

300

600

1200

2400

4800

# of connections

 

0

 

0

0

0

0

1

Connection Speeds

7200

9600

12000

14400

16800

19200

# of connections

 

1

 

4

0

3

0

8

Connection Speeds

21600

24000

26400

28000

28800

29333

# of connections

 

0

 

0

0

0

0

0

Connection Speeds

30667

31200

32000

33333

33600

34000

# of connections

 

0

 

0

0

0

0

0

Connection Speeds

34667

36000

37333

38000

38400

38667

# of connections

 

0

 

0

0

0

6

0

Connection Speeds

40000

41333

42000

42667

44000

45333

# of connections

 

0

 

0

0

0

0

0

Connection Speeds

46000

46667

48000

49333

50000

50667

# of connections

 

0

 

0

0

0

0

0

Connection Speeds

52000

53333

54000

54667

56000

 

# of connections

 

0

 

0

0

0

0

 

show modem operational-status

Fields that have been added or changed for this command are:

Parameter #1 Connect Protocol: ISDN Mode

Parameter #8 Connected standard V.110

Parameter #41 V110 frames received bad:

Parameter #42 V110 frames received good:

Parameter #43 V110 frames transmitted:

Parameter #44 V110 sync lost:

The show modem operational-status command example is as follows:

router# show modem operational-status1/0 Modem(1/0)Operational-Status:

Parameter #0 Disconnect Reason Info: (0x0)

Type (=0 ): <unknown>

Class (=0 ): Other

6 Cisco IOS Release 12.0(4)XI1

:Modem State event: State: Train Up
:Modem State event: State: EC Negotiating
:Modem State event:

show Command Examples

Reason (=0 ): no disconnect

has yet occurred

 

 

Parameter #1

Connect Protocol:

ISDN Mode

 

 

 

Parameter #2

Compression:

None

 

 

 

 

 

 

Parameter #3

EC Retransmission Count:

0

 

 

 

Parameter #4

Self Test Error Count:

0

 

 

 

 

Parameter #5

Call Timer:

37079 secs

 

 

 

 

Parameter #6

Total Retrains:

0

 

 

 

 

 

 

Parameter #7

Sq Value: 7

 

 

 

 

 

 

 

 

Parameter #8

Connected Standard:

V.110

 

 

 

 

Parameter #9

TX,RX Bit Rate:

9600, 9600

 

 

 

Parameter #11

TX,RX Symbol Rate:

0, 0

 

 

 

 

Parameter #13

TX,RX Carrier Frequency:

0, 0

 

 

Parameter #15

TX,RX Trellis Coding:

(n/a), (n/a)

 

 

Parameter #16

TX,RX Preemphasis Index:

0, 0

 

 

Parameter #17

TX,RX Constellation Shaping:

(n/a), (n/a)

Parameter #18

TX,RX Nonlinear Encoding:

(n/a), (n/a)

 

Parameter #19

TX,RX Precoding:

(n/a), (n/a)

 

 

Parameter #20

TX,RX Xmit Level Reduction:

0, 0 dBm

 

Parameter #21

Signal Noise Ratio:

0 dB

 

 

 

 

Parameter #22

Receive Level:

0 dBm

 

 

 

 

 

Parameter #23

Frequency Offset:

0 Hz

 

 

 

 

Parameter #24

Phase Jitter Frequency: 0 Hz

 

 

Parameter #25

Phase Jitter Level:

0 degrees

 

 

Parameter #26

Far End Echo

Level:

0 dBm

 

 

 

 

Parameter #27

Phase Roll:

0 degrees

 

 

 

 

 

Parameter #28

Round Trip Delay:

0 msecs

 

 

 

 

Parameter #30

Characters transmitted, received: 247, 308

Parameter #32

Characters received BAD:

0

 

 

 

Parameter #33

PPP/SLIP packets transmitted, received:

9, 9

Parameter #35

PPP/SLIP packets received (BAD/ABORTED):

0

Parameter #36

EC packets transmitted, received OK:

0, 0

Parameter #38

EC packets (Received BAD/ABORTED):

0

 

Parameter #39

Robbed Bit Signalling

(RBS) pattern:

0

 

Parameter #40

Digital Pad:

(n/a),

Digital Pad Compensation: None

Parameter #41

V110 frames received bad:

0

 

 

 

Parameter #42

V110 frames received good:

 

7417301

 

 

Parameter #43

V110 frames transmitted:

7417310

 

 

Parameter #44

V110 sync lost:

0

 

 

 

 

 

 

show modem log

Fields that have been added or changed for this command are:

Connect Protocol: ISDN Mode

Connected Standard V.110

V110 frames received bad:

V110 frames received good:

V110 frames transmitted:

V110 sync lost:

The show modem log command example is as follows:

router# show modem log 1/1

Modem 1/1 Events Log:

...

...

...

4d06h

4d06h

4d06h

Basic V110 for MICA Modems on Cisco Access Servers 7

...
...
...
1d11h
1d11h
1d11h

State: Steady

4d06h :RS232 event: RTS, DTR, CTS, DCD 4d06h :Static event:

Connect Protocol: ISDN Mode Compression: None

Connected Standard: V.110 TX,RX Symbol Rate: 0, 0

TX,RX Carrier Frequency: 0, 0 TX,RX Trellis Coding: (n/a), (n/a) Frequency Offset: 0 Hz

Round Trip Delay: 2 msecs TX,RX Bit Rate: 19200, 19200

Robbed Bit Signalling (RBS) pattern: 0

Digital Pad: (n/a), Digital Pad Compensation: None 4d06h :Dynamic event:

Sq Value: 7

Signal Noise Ratio: 0 dB Receive Level: 0 dBm

Phase Jitter Frequency: 0 Hz Phase Jitter Level: 0 degrees Far End Echo Level: 0 dBm Phase Roll: 0 degrees

Total Retrains: 0

EC Retransmission Count: 0

Characters transmitted, received: 0, 0 Characters received BAD: 0

PPP/SLIP packets transmitted, received: 0, 0 PPP/SLIP packets received (BAD/ABORTED): 0 EC packets transmitted, received OK: 0, 0

EC packets (Received BAD/ABORTED): 0 V110 frames received bad: 0

V110 frames received good: 51

V110 frames transmitted: 64

V110 sync lost: 0

:Modem State event: State: Terminate

:RS232 event: RTS, DTR, CTS, noDCD :Modem State event:

State: Idle

1d11h :End Connect event: Call Timer: 87 secs

Disconnect Reason Info: (0xDF06)

Type (=6 ): Tx (host to line) data flushing - OK Class (=31): Requested by host

Reason (=6 ): network indicated disconnect Total Retrains: 0

EC Retransmission Count: 0

Characters transmitted, received: 308, 50042 Characters received BAD: 0

PPP/SLIP packets transmitted, received: 10, 43 PPP/SLIP packets received (BAD/ABORTED): 0

EC packets transmitted, received OK: 0, 0 EC packets (Received BAD/ABORTED): 0 V110 frames received bad: 3

V110 frames received good: 34493

V110 frames transmitted: 34710

V110 sync lost: 1

...

...

...

10:37:18:Static event:

Connect Protocol: ISDN Mode

8 Cisco IOS Release 12.0(4)XI1

ATDI Command (place V.110 call)

Compression: None Connected Standard: V.110 TX,RX Symbol Rate: 0, 0

TX,RX Carrier Frequency: 0, 0 TX,RX Trellis Coding: (n/a), (n/a) Frequency Offset: 0 Hz

Round Trip Delay: 2 msecs TX,RX Bit Rate: 9600, 9600

Robbed Bit Signalling (RBS) pattern: 0

Digital Pad: (n/a), Digital Pad Compensation: None 10:37:20:Dynamic event:

Sq Value: 7

Signal Noise Ratio: 0 dB Receive Level: 0 dBm

Phase Jitter Frequency: 0 Hz Phase Jitter Level: 0 degrees Far End Echo Level: 0 dBm Phase Roll: 0 degrees

Total Retrains: 0

EC Retransmission Count: 0

Characters transmitted, received: 0, 0 Characters received BAD: 0

PPP/SLIP packets transmitted, received: 0, 0 PPP/SLIP packets received (BAD/ABORTED): 0 EC packets transmitted, received OK: 0, 0

EC packets (Received BAD/ABORTED): 0 V110 frames received bad: 0

V110 frames received good: 26

V110 frames transmitted: 33

V110 sync lost: 0

...

...

...

1d06h :End Connect event: Call Timer: 105 secs

Disconnect Reason Info: (0xDF06)

Type (=6 ): Tx (host to line) data flushing - OK Class (=31): Requested by host

Reason (=6 ): network indicated disconnect Total Retrains: 0

EC Retransmission Count: 0

Characters transmitted, received: 247, 307 Characters received BAD: 0

PPP/SLIP packets transmitted, received: 9, 9 PPP/SLIP packets received (BAD/ABORTED): 0 EC packets transmitted, received OK: 0, 0

EC packets (Received BAD/ABORTED): 0 V110 frames received bad: 3

V110 frames received good: 20758

V110 frames transmitted: 20995

V110 sync lost: 1

ATDI Command (place V.110 call)

The calling user can manually communicate with a V.110 modem in order to originate a remote V.110 dialout from the called modem. The AT command set now includes theATDI command (place V.110 call) to allow a V.110 call to be originated from the called modem. The user enters the ATDI command after establishing a session with the MICA modem in order todial-outa V.110 call from the modem.

Basic V110 for MICA Modems on Cisco Access Servers 9

By specifying a value 8 in S29, the user causes the remote modem to implicitly assume that a V.110 connection is to be established. This command indicates that an ISDN call is being requested, and when used with theS29=8 command, results in modem code issuing aISDN_DIALSTRING (0x45) request being made to the host.

After entering the S29=8 command, you can enter the desired user rate if different from the default value of 9600 bps. This command takes the form:S57=speed. For supported rates, see the“Restrictions” section. For example:

S57=19200

Debug Commands

There are no debug commands specific to this feature. Existing ISDN debug commands can be used.

Example Debug Commands for Cisco AS5200 and Cisco AS5300

router# debug isdn q931 router# debug modem csm router# term mon

Example Debug Commands for Cisco AS5800

router# debug isdn q931 router# debug csm router# term mon

10 Cisco IOS Release 12.0(4)XI1